Land roller and pulverizer



J. F. WAGNER LAND ROLLER AND PULVERIZER March 4, 1924. 1 ,485,651

Filed March 2a. 1925 Patented Mar. 4, 19234.

JOSEPH WAGNEB, O3? SOUTH BEND. INDIANA.

LAND ROLLER AND PULVERIZER.

Application filed March 26, 1923.

To all whom 2'15 may concern:

Be it known that I, Josnrrr F. Bremen. a citizen of the llnited vfdtates. residing; at South Bend. in the county of St. Joseph and State of Indiana, have invented certain new and useful Improvements in Land Rollers and Pulverizers, of which the following is a specification.

The invention relates to land. rollers and pulverizers, and has for its object to provide a device of this character wherein the rollers are carried by frames having segmentally shaped members, on which members segmentally shaped frame supporting bracket members rock intermediate the rollers, thereby shifting the weight of the upper structure of the machine from adjacent one roller towards the other roller. as the rollers go over a hump in the ground or into a depression. The action and shifting of the Weight impartin substantially a double rollmg of the ground.

A further object is to provide the frame carried bracket with draft lugs, which lugs extend through arcuate slots in the roller carried frames and prevent displacement of the segmentally shaped engaging members as well as receive the strain of the draft. The draft lugs, during the rocking action of the roller carried frames, guide said frames.

A further object is to provide a land roller wherein the weight of the frame of the land roller is shifted from adjacent one roller to the other through the medium of a rocking connection of engaging segmentally shaped trackwavs.

With the above and other objects in view the invention resides in the combination and arrangement of parts as hereinafter set forth, shown in the drawing, described and claimed, it being understood that changes in the precise embodiment of the invention may be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawing Figure 1 is a side elevation of the land roller and pulverizer.

Figure 2 is a rear elevation.

Figure 3 is a sectional view taken on line 3-3 of Figure 2, showing the inside of one of the roller carried frames.

Referring to the drawing. the numeral 1 designates the frame of the land roller, which frame is substantially horizontally disposed and has connected thereto a tongue Serial No. 627,590.

2. to which draft animals or a tractor may be attached for moving the device over the ground. Secured to the ends of the frame 1, by means of bolts 3 are downwardly extending brackets 4, which brackets are disposed in a vertical longitudinal plane. The lower ends of the brackets 4 are provided with segmentally shaped rocker surfaces 5. which rocker surfaces engage the segmentall v shaped rocker surfaces 6 carried by the verticallv and longitudinally disposed roller carried frames 7. Rocker surfaces 6 are formed on the upper sides of elongated mem bers 8 car 'ied by the inner sides of the frames 7 and preferabh formed integral therewith. Connecting the ends of the oppositely disposed frames 7 together are transversely disposed shafts 9. and on which shafts the corrugated rollers 10 and 11 are rotatably mounted. When the roller 10 passes over the hump 11 in the ground. the rocker surfaces 5 and 6 rock in such a manner that the weight of the frame 1 is shifted on the frame 7 to a point adjacent the center of the roller 10, which action is caused by an upward movement of the roller 10. As the roller 10 leaves the hump 12 the r0ckin action talres place in such a manner that the roller 11. when ascending and passing over the hump, moves upwardly. therehv shifting the weight of the upper structure of the machine to a point adj acent the center of the rear roller. consequently. during the rocking action, substantially a double rollinp; is accomplished with the full weight of the machine in going: over humps adjacent one roller and then adjacent the other. EX- tending outwardly from the sides of the brackets 4 are draft lugs 13, which draft lugs move in arcuate slots 14 during the rocking: of the frame 7 and engage the opposite walls of the slots 14; for preventing displacement of the rocker surfaces 5 and 6 in relation to each other. and at the same time receive the strain. of the draft as the machine is moved over the ground in a forward or rearward direction, or when turning. The draft lugs 13 are preferably formed integral with the brackets 4, to reduce the working parts to a minimum.

It will be seen that after the frames 7 have been placed on the shaft 9, and the nuts 15 placed on the ends of the shafts 9, and the lugs 13 disposed in the slot 14, the draft lugs will be held in the arcuate slots, without further securing means.

til

'maxiimmi pressure is desirable.

From the above it will be seen that a land roller and pulverizer is provided wherein the weight of the machine is shifted from one roller to the other as the machine moves over uneven ground, and a rocking connection is provided between the roller frames and the main frame of the machine, which rocker connection is formed by engaging segmentally shaped members. The weight of the machine is shifted according to the height of the hump over which the rollers pass, for instance if the hump is a relatively low one, the shifting of the weight towards the rollers will not be as close as where the hump is a relatively high one, and where a t will also be seen that the draft lugs not only receive the strain of the draft, but also maintain the 1'OCl I.1 surfaces 5 and 6 in relative position to each other duringthe rocking operation, thereby insuring positive operation of the machine and shifting of the weight.

The invention having been set forth what is claimed as new and useful is 1. In a land roller, the combination of successive parallel roller carrying shafts, frames carried by the shafts at their ends, a weight frame above said first frames and rocking connections between the weight frame and the first mentioned frames, said rocking connections comprising engaging segmentally shaped surfaces, carried by the first mentioned frames and the weight frames.

2. A land roller comprising a weight frame, roller carrying frames disposed below the weight carrying frame, and rocking connections between the weight frame and the roller carried frames, said rocking connections comprising engaging convened surfaces.

3. A land roller comprising a frame, rollers disposed beneath said frame, vertically disposed frames connecting the ends of the rollers, a rocking connection between the frame and the vertically disposed fran'ies and formed by engaging convened surfaces and draft members *arricd by the frame and extending through arcuatc slots in the vertically disposed frames.

4:. A land roller comprising a frame, roller carried frames disposed beneath said frame, a rocking connection between the frame and roller carrying frames and formed from engaging convexed surfaces and draft lugs carried by the frame and extending through arcuate slots in the roller carrying frames.

5. A land roller comprising a frame, rollers disposed beneath said frame, roller carrying frames, rocking connections between the frame and the roller carrying frames and formed by engaging convened surfaces disposed between the centers of the rollers.

6. A land roller comprising a frame, rollers disposed beneath said frame, roller cat'- rying frames, rocking connections between said frame and the roller carrying frames and formed from engaging CODVGXQCl surfaces, and guiding and draft lugs carried by the frame and extending into arcuate slots in the roller carrying frames.

7. A land roller con'iprising a frame, rollers disposed beneath said frame, roller carrying frames, rocking connections between. said frame and the roller carrying frames, and disposed between the centers of the rollers, said rocking connections being formed by engaging convened members and lugs carried by the frame and extending through arcuate slots in the roller carrying frames.

8. A land roller comprising a frame, roll-v ers disposed beneath said frame, roller car rying frames, downwardly,extending brackets carried by the frame, the lower ends of said downwardly extending brackets being converted, CODVBXSCl members carried by the roller carrying frames and engaging the convened ends of the brackets and guide lugs carried by the downwardly extending brackets and disposed in slots of the roller car rying frames.

9. A land roller comprising a frame, rollers disposed beneath said frame, a roller carrying frame, a rocking connection. between the frame and the, roller carrying frame, said rocking connection being formed by engaging convened members.

10. A land roller comprising a frame, rollcrs disposed beneath said frame, a roller carrying frame, a rocking connection between the frame and the roller carryingv frame, said rocking connection being formed by engaging convexed members disposed between the centers of the rollers.

11. A land roller comprising a frame, rollers disposed beneath said frame, a roller carrying frame, a rocking connection between the frame and the roller carrying frame, said rocking connection being formed by engaging con'vexed members, and lugs carried by the frame and extending through slots in the roller carrying frame.

.12. A land roller comprising a weight frame, roller carrying frames disposed below the weight frame, and rockably engaged members between the weight frame and the roller carrying frames whereby one frame may rock with relation to the other to shift the bearing points between said rockably engaged members.

13. A land roller comprising a weight frame, roller carrying frames. supporting the weight-frame, said frames having rockably engaged bearing means whereby one frame may rock to and fro with relation to the other to shift the point of bearing.

In testimony whereof I affix my signature.

J OSEPH' F. WAGNER.

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